BL9165-180BARN
Shanghai Belling
Needs validationmedium risk
Strong functional match on core specs and Vin range, but has weaker noise rejection and higher power consumption.
Best Alternatives to ETA5055V180DS2F
ETA5055V180DS2F is an ultra-high PSRR, ultra-low quiescent current 500mA LDO in a SOT23-5 package, ideal for noise-sensitive applications. While direct pin-compatible replacements are not confirmed, several functional alternatives exist with similar core specifications.
AI replacement insight
Electrical riskhigh
Target's ultra-high PSRR and low Iq are key features. Most alternatives are significantly weaker, risking system performance in noise-sensitive applications.
Package riskmedium
While candidates are in SOT23-5 packages, pinout must be verified against the target datasheet to ensure drop-in compatibility.
Sourcing risklow
Multiple manufacturers produce LDOs with these core specs, providing several sourcing options.
Can it be replaced directly?
No confirmed direct, pin-compatible replacement for ETA5055V180DS2F has been identified. Several functional alternatives in the same package exist, but require verification of pinout and performance parameters.
Best replacement path
BL9165-180BARN is a strong starting point as it matches the input voltage range, but its weaker noise rejection (PSRR) and higher quiescent current require careful evaluation.
Main risk
Significant performance downgrade in Power Supply Rejection Ratio (PSRR) and quiescent current (Iq), and potential input voltage incompatibility with some alternatives.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | ETA5055V180DS2F | BL9165-180BARN | RT9013-18GB-MS | LP3987H-18B5F | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT23-5 | SOT23-5 | SOT-23-5 | SOT23-5 | SOT23-5 / SOT-23-5 — Package style matches.; RT9013-18GB-MS: Package style matches.; LP3987H-18B5F: Package style matches.; ME6231C18M5G: Package style matches. |
| Voltage | 1.8V - 5.5V | 1.8V - 5.5V | 1.8V | 2.5V to 6.0V | 1.8V - 5.5V / 2.5V to 6.0V / 3V to 18V — Input and output voltages match.; RT9013-18GB-MS: Output voltage matches.; LP3987H-18B5F: Minimum input voltage is 2.5V, higher than target's 1.8V.; ME6231C18M5G: Minimum input voltage is 3V, higher than target's 1.8V. |
| Current | 500mA | 500mA | 500mA | 600mA | 500mA / 600mA — Output current matches.; RT9013-18GB-MS: Output current matches.; LP3987H-18B5F: Higher output current provides more margin.; ME6231C18M5G: Output current matches. |
| Psrr | 102dB | 83dB | 75dB | 65dB | 83dB / 75dB / 65dB — Lower PSRR, may not be suitable for noise-sensitive applications.; RT9013-18GB-MS: Significantly lower PSRR, may not be suitable for noise-sensitive applications.; LP3987H-18B5F: Significantly lower PSRR.; ME6231C18M5G: Significantly lower PSRR. |
| Quiescent Current | 4.5µA | 45µA | 60µA | - | 45µA / 60µA / 1.8µA — Higher quiescent current, impacting battery life.; RT9013-18GB-MS: Significantly higher quiescent current, impacting battery life.; ME6231C18M5G: Lower quiescent current is an improvement. |
Application & sourcing insights
Questions & answers
BL9165-180BARN is a strong functional alternative, matching the input voltage range, output voltage, current, and package. However, its PSRR and quiescent current do not match the ultra-high performance of the ETA part, requiring careful review for noise-sensitive designs.